WRA_N-2W & WRB_N-2W Series
2W, WIDE INPUT, ISOLATED®ULATED
DUAL/SINGLE OUTPUT DIP DC-DC CONVERTER
multi-country patent protection RoHS
PRODUCT PROGRAM
FEATURES
Miniature DIP Package
Wide (2:1) Input Range
Operating Temperature: -40°C to +85°C
1500VDC Isolation
No Heat Sink Required
No External Component Required
Industry Standard Pinout
Internal SMD construction
Short circuit protection(automatic recovery)
RoHS Compliance
Input
Voltage (VDC)
Nominal Range
Output
Part
Number
Efficiency
(%, Typ)
Current (mA)
Voltage
(VDC)
Max*
Max
±200
±111
±83
±67
500
400
222
167
133
±200
±111
±83
±67
500
400
222
167
133
Min
±20
±11
±8
WRA1205N-2W
WRA1209N-2W
WRA1212N-2W
WRA1215N-2W
WRB1203N-1W6
WRB1205N-2W
WRB1209N-2W
WRB1212N-2W
WRB1215N-2W
WRA2405N-2W
WRA2409N-2W
WRA2412N-2W
WRA2415N-2W
WRB2403N-1W6
WRB2405N-2W
WRB2409N-2W
WRB2412N-2W
WRB2415N-2W
±5
±9
±12
±15
3.3
5
75
76
78
78
70
74
76
78
78
76
77
78
79
72
76
78
80
79
±7
12
9-18
22
50
40
9
22
12
15
±5
±9
±12
±15
3.3
5
16
13
APPLICATIONS
±20
±11
±8
The WRA_N-2W & WRB_N-2W Series are
specially designed for applications where a
wide range input voltage power supplies are
±7
isolated from the input power supply in
a
24
18-36
40
50
distributed power supply system on a circuit
board. These products apply to:
40
1) Where the voltage of the input power supply
is wide range (voltage range≤2:1);
9
22
12
15
16
2) Where isolation is necessary between input
and output(isolation voltage≤1500VDC);
3) Where the regulation of the output voltage
and the output ripple noise are demanded.
13
*Input voltage can’t exceed this value, or will cause the permanent damage.
Note: The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
OUTPUT SPECIFICATIONS
Item
Test conditions
Min
Typ
Max
2
Units
W
Output power
Refer to above products program 0.2
MODEL SELECTION
Positive voltage accuracy Refer to recommended circuit
Negative voltage accuracy Refer to recommended circuit
±1
±3
±3
WRB2405N-2W
±5
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
%
Load regulation
Line regulation
From 10% to 100% load
Input Voltage From Low to High
Refer to recommended circuit
20MHz bandwidth
±0.5
±0.2
±1*
±0.5
Temperature drift
Ripple & Noise**
Switching frequency
±0.03 %/°C
100 mVp-p
KHz
50
100% load, input voltage range
300
*Dual output models unbalanced load: ±5%.
**Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of
Power Converter section, application notes.
MORNSUN Science & Technology co.,Ltd.
Address: 2th floor 6th building, Hangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
http://www.mornsun-power.com
ISOLATION SPECIFICATIONS
Item
Test conditions
Min
Typ
85
Max
Units
VDC
MΩ
Isolation voltage
Isolation resistance
Tested for 1 minute and 1 mA max
Test at 500VDC
1500
1000
Isolation Capacitance Input/Output
pF
MORNSUN reserves the copyright
Specifications subject to change without notice.
WRA_N_2W&WRB_N_2W
A/1-2008
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